Dropdown/select box in a dhtmlx grid

I used mygrid.setColType(“coro”) and I wanted few values in the select box of a grid. But the values are not coming up in the select box
Here is the sample values i used
mygrid.getCombo(10).put(3,“Not Booked”);

Unfortunately the issue cannot be reconstructed locally.
Please, provide a more complete sample of your code with the init of your grid.

Its working nw with the same code